通过光学浮区法生长了直径约为6mm、长度约为45mm的高质量EuFeO3晶体.对所获得的晶体沿着生长方向进行切片并抛光,使用扫描电镜(SEM)观察不同切片表面的形貌,以了解晶体的生长过程,同时使用EDS能谱分析晶体成分,结果显示通过光学浮区法获得的EuFeO3晶体具有良好的成分一致性,铁元素与稀土铕元素物质的量比为1∶1.摇摆曲线结果显示晶体具有良好的结晶质量.对EuFeO3晶体进行磁性测量,发现EuFeO3晶体在不同方向上表现出强烈的磁各向异性,c轴方向上奇特的分步磁化现象可能是由于晶体内磁化难轴和易轴的改变所致.
参考文献
[1] | Bozorth R M;Williams H J;Walsh D E .Magnetic properties of some orthoferrites and cyanides at low temperature[J].Physical Review,1956,103(03):572. |
[2] | Treves D .Magnetic studies of some orthoferrites[J].Physical Review,1962,125(06):1843. |
[3] | Bazaliy Y B;Tsymbal L T;Nakazei G N et al.The role of erbium magnetization anisotropy during the magnetic reorientation in ErFeO3[J].Journal of Applied Physics,2004,95(11):6622. |
[4] | Kimel A V;Kirilyuk A;Usachev P A et al.Ultrafast nonthermal control of magnetization by instantaneous photomagnetic pulses[J].Nature,2005,435(7042):655. |
[5] | Kimel A V;Kirilyuk A;Usachev P A et al.Inertia-driven spin switching in antiferromagnets[J].Nature Physics,2009,5:727. |
[6] | Yusuke Tokunaga;Nobuo Furukawa;Hideaki Sakai;Yasujiro Taguchi;Taka-hisa Arima;Yoshinori Tokura .Composite domain walls in a multiferroic perovskite ferrite[J].Nature Materials,2009(7):558-562. |
[7] | Tokunaga Y;Iguchi S;Arima T et al.Magnetic-field-induced ferroelectric state in DyFeO3[J].Physical Review Letters,2008,101(09):097205. |
[8] | Nirpendra SINGH;Joo Yull RHEE;S. AULUCK .Electronic and Magneto-Optical Properties of Rare-Earth OrthoferritesRFeO_3 (R = Y, Sm, Eu, Gd and Lu)[J].Journal of the Korean Physical Society,2008(2):806-811. |
[9] | Sherwood R C et al.Domain behavior in some transparent magnetic oxides[J].Journal of Applied Physics,1959,30(02):217. |
[10] | White R L .Review of recent work on the magnetic and spectroscopic properties of the rare-earth orthoferrites[J].Journal of Applied Physics,1969,40(03):1061. |
[11] | Durbin G W;Johnson C E;Perlorendjo L A et al.Spin reorientation in rare earth orthoferrites[J].J Phys Colloques,1976,37:C6. |
[12] | Li Pingli;Xiao Yusong;Wen Huisu et al.The influence of substitution of Mn ions on quadrupole splitting of EuFeO3perovskite oxide[J].Hyperfine Interactions,1998,116(1-4):167. |
[13] | Fenfen Chang;Shujuan Yuan;Yabin Wang;Sheng Zhan;Shixun Cao;Anhua Wu;Jun Xu .Growth and surface morphology of ErFeO_3 single crystal[J].Journal of Crystal Growth,2011(1):932-935. |
[14] | Thomas L.;Ballou R.;Gatteschi D.;Sessoli R.;Barbara B.;Lionti F. .MACROSCOPIC QUANTUM TUNNELLING OF MAGNETIZATION IN A SINGLE CRYSTAL OF NANOMAGNETS[J].Nature,1996(6596):145-147. |
[15] | 王志宏,蔡建旺,沈保根,赵见高,詹文山.自旋玻璃锰氧化物La0.67Ca0.33(Mn,Fe)O3中的分步磁化和超大磁电阻[J].物理学报,1999(04):757-762. |
[16] | Bozorth R M;Gambino R J;Clark A E .Magnetization of some single crystal alloys of rare earth metals[J].Journal of Applied Physics,1968,39(02):883. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%